Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 8011 1133 14% 0.00 1524 754 49% 7.0
10 Kinds of People 16715 3432 21% 0.01 2853 2042 72% 4.3
2048 7712 3604 47% 0.00 3464 2962 86% 2.2
3D Printed Statues 9054 4151 46% 0.00 3844 3442 90% 1.9
3D Printer 704 129 18% 0.00 275 99 36% 8.6
3-Sided Dice 2223 192 9% 0.00 362 133 37% 8.6
4 thought 7895 2658 34% 0.00 2649 2212 84% 2.6
A1 Paper 4948 1462 30% 0.00 1445 1151 80% 3.6
Aaah! 26751 12428 46% 0.00 11161 10395 93% 1.6
Abandoned Animal 1779 382 21% 0.03 442 319 72% 5.2
ABC 12279 5560 45% 0.00 5286 4803 91% 1.9
Ab Initio 889 177 20% 0.09 131 85 65% 7.4
Above Average 7719 3184 41% 0.00 3157 2826 90% 2.2
A+B Problem 7539 731 10% 0.03 1053 348 33% 8.4
A Brief Gerrymander 201 45 22% 0.15 49 30 61% 8.4
Abstract Art 272 81 30% 0.00 82 61 74% 6.6
Abstract Painting 191 84 44% 0.00 94 76 81% 3.7
Absurdistan Roads II 562 203 36% 0.00 199 137 69% 6.8
Absurdistan Roads III 1384 390 28% 0.02 381 293 77% 5.4
Access Points 382 137 36% 0.01 127 100 79% 4.7
A Classy Problem 8671 2200 25% 0.01 1937 1489 77% 4.6
ACM Contest Scoring 6347 3968 63% 0.00 3506 3311 94% 1.6
Add 'Em Up! 503 139 28% 0.01 145 109 75% 4.9
Adding Words 9740 2283 23% 0.00 2234 1719 77% 3.6
A Different List Game 6659 470 7% 0.00 833 169 20% 9.1
A Different Problem 28544 10603 37% 0.00 9782 8494 87% 2.3
Adjoin the Networks 1963 513 26% 0.00 447 349 78% 5.6
Administrative Difficulties 1061 242 23% 0.03 258 176 68% 6.2
Advanced Causal Measurements 82 30 37% 0.10 27 23 85% 6.1
Adventure Begins 248 80 32% 0.06 87 66 76% 4.0
Adventures in Moving -- Part IV 969 274 28% 0.00 238 203 85% 4.4
A Favourable Ending 1546 396 26% 0.00 373 284 76% 4.6
A Feast For Cats 1987 709 36% 0.00 475 401 84% 4.2
A Flea on a Chessboard 416 88 21% 0.01 97 72 74% 5.0
Air Conditioned Minions 4801 1322 28% 0.00 1396 1050 75% 3.9
Airline Hub 1754 326 19% 0.01 355 201 57% 6.7
Airport Coffee 858 184 21% 0.09 169 121 72% 7.1
Airport Construction 3306 421 13% 0.02 349 183 52% 7.5
Airport Logistics 63 13 21% 0.00 20 13 65% 8.0
Airports 406 111 27% 0.11 117 82 70% 6.9
Akcija 6879 3046 44% 0.00 2776 2461 89% 2.0
Aladin 754 76 10% 0.10 122 29 24% 8.3
Alchemy 112 16 14% 0.02 31 16 52% 8.8
Alea iacta est 32 13 41% 0.34 17 13 76% 6.9
Alehouse 170 75 44% 0.03 58 44 76% 4.7
Alice in the Digital World 3120 848 27% 0.01 819 644 79% 4.1
Alien Codebreaking 236 13 6% 3.23 37 10 27% 8.9
Alien Numbers 2155 1120 52% 0.00 1092 991 91% 2.0
A List Game 7771 2296 30% 0.00 2167 1823 84% 2.9
All about that base 2737 1074 39% 0.00 1055 883 84% 3.0
All Different Directions 1174 505 43% 0.00 475 416 88% 2.6
Allergy Test 448 128 29% 0.00 145 75 52% 7.7
All Friends 837 163 19% 0.00 150 78 52% 8.9
All is Well 66 16 24% 0.03 16 14 88% 5.5
All Just A Dream 1870 415 22% 0.05 288 204 71% 6.4
All Pairs Shortest Path 8323 1483 18% 0.00 1021 718 70% 6.0
Almost Perfect 7070 1652 23% 0.00 1763 1371 78% 3.7
Almost Union-Find 6125 1086 18% 0.02 985 569 58% 6.6
Alphabet 1417 692 49% 0.00 711 596 84% 3.1
Alphabet Animals 1707 543 32% 0.00 549 443 81% 3.3
Alphabet Spam 7540 4718 63% 0.00 3851 3700 96% 1.4
Alternative Bracket Notation 205 86 42% 0.00 91 76 84% 5.6
Altruistic Amphibians 377 98 26% 0.24 95 69 73% 5.0
Amalgamated Artichokes 3747 1684 45% 0.01 1524 1326 87% 2.8
Amanda Lounges 1399 394 28% 0.03 367 288 78% 5.7
A Mazing! 2547 581 23% 0.09 273 206 75% 5.1
Amazing Adventures 330 85 26% 0.02 98 67 68% 6.1
Amazing Race 281 75 27% 0.39 85 60 71% 7.2
Ambiguous Result 264 57 22% 0.02 87 54 62% 8.2
Amsterdam Distance 1340 588 44% 0.00 636 522 82% 3.0
A Multiplication Game 717 239 33% 0.00 272 203 75% 4.7
Anagram Counting 3365 1293 38% 0.00 1256 1047 83% 3.1
Andrew the Ant 275 74 27% 0.06 85 64 75% 5.1
A New Adventure 849 136 16% 0.00 152 102 67% 6.0
A New Alphabet 10447 4668 45% 0.00 4327 3997 92% 1.8
An I for an Eye 624 147 24% 0.00 174 118 68% 5.2
Animal Classification 1554 353 23% 0.03 304 201 66% 6.8
An Industrial Spy 1482 782 53% 0.02 615 528 86% 3.2
Another Brick in the Wall 3068 1512 49% 0.00 1460 1334 91% 1.9
Another Candies 7532 2053 27% 0.00 2130 1757 82% 2.7
Another Dice Game 97 67 69% 0.00 64 56 88% 4.0
Another Query on Array Problem 1490 213 14% 0.05 325 148 46% 7.5
Antenna Placement 133 62 47% 0.00 42 34 81% 5.5
Anthony and Cora 851 217 25% 0.00 258 181 70% 5.3
Anthony and Diablo 2881 991 34% 0.00 994 856 86% 2.5
Antiarithmetic? 1345 248 18% 0.01 310 178 57% 7.1
Ants 3437 1521 44% 0.00 1222 1066 87% 2.7
Apaxiaaaaaaaaaaaans! 12239 7471 61% 0.00 6617 6335 96% 1.4
Apostrophe Catastrophe 99 24 24% 0.00 25 17 68% 6.3
Appalling Architecture 595 170 29% 0.00 146 123 84% 3.6
Apparatus 682 169 25% 0.01 136 102 75% 5.7
Apple Market 468 96 21% 0.07 116 60 52% 8.3
Apples, Cherries, and Mangos 406 123 30% 0.02 126 91 72% 6.4
A Prize No One Can Win 2076 835 40% 0.00 758 664 88% 2.5
Aquarium Tank 474 133 28% 0.00 128 101 79% 5.1
Aqueduct Construction 196 71 36% 0.01 55 47 85% 6.8
A Question of Ingestion 1273 315 25% 0.00 302 230 76% 5.8
Arable Area 294 65 22% 0.04 67 42 63% 8.1
Arachnophobia 341 102 30% 0.14 92 77 84% 5.1
A Random Problem 313 80 26% 0.00 77 53 69% 6.3